PHP mt_srand() Function
Definition and Usage
mt_srand() seeds the Mersenne Twister random number generator.
Syntax
mt_srand(seed)
| Parameters | Description |
|---|---|
| seed | Required. Use seed to seed the random number generator. |
Description
Starting from PHP 4.2.0 version,seed Parameters become optional. When this item is empty, it will be set to the current time.
Tips and Comments
Note:Since PHP 4.2.0, it is no longer necessary to use srand() Or use mt_srand() function to seed the random number generator, which is now automatically completed.
Example
In this example, we will seed the random number generator:
<?php mt_srand(mktime()); echo(mt_rand()); ?>
Output similar to:
1132656473
